That should only be a problem if you are using the RHEL4 version of zimbra on EL-5 (as it tries to use the PROVIDED perl modules that are designed for perl 5.8.5).
I am sure that there are scenarios where there might be some other issues, but they would evolve some kind of 3rd party repo perl installs or CPAN manual installs on CentOS5/RHEL5.
At least that is my experience with CentOS-5 or RHEL-5 and the FOSS GA install for RHEL-5.
Be expecting breakage if / when you update perl (if new versions are released later) as it will overwrite the CPAN Scalar::Util modules. |